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先说明,这个办法只限于iframe中的子页面也是本地页面(不能引用外网页面)
======方法===== 第一步 js部分
function getSize() { var xScroll, yScroll; if (window.innerHeight && window.scrollMaxY) { xScroll = document.body.scrollWidth; yScroll = window.innerHeight + window.scrollMaxY; } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac xScroll = document.body.scrollWidth; yScroll = document.body.scrollHeight; } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari xScroll = document.body.offsetWidth; yScroll = document.body.offsetHeight; }
var windowWidth, windowHeight; if (self.innerHeight) { // all except Explorer windowWidth = self.innerWidth; windowHeight = self.innerHeight; } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode windowWidth = document.documentElement.clientWidth; windowHeight = document.documentElement.clientHeight; } else if (document.body) { // other Explorers windowWidth = document.body.clientWidth; windowHeight = document.body.clientHeight; }
// for small pages with total height less then height of the viewport if(yScroll < windowHeight){ pageHeight = windowHeight; y = pageHeight; } else { pageHeight = yScroll; y = pageHeight; }
if(xScroll < windowWidth){ pageWidth = windowWidth; } else { pageWidth = xScroll; }
arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) return arrayPageSize; } 这段代码用来获取目标页的参数,包括页面高、宽,屏幕高、宽
function autoHeight(pid) { var x = new getSize(); parent.document.getElementById(pid).height=x[1]; } 这段代码用来实现父页面中iframe的高度自适应
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第二步 页面部分
<div class="onright" style="width:480px;"><iframe id="infrm" name="infrm" marginwidth="0" marginheight="0" width="100%" src="park.htm" frameborder="0" scrolling="auto"></iframe> 这是父页面的iframe,没什么特别的,和普通的iframe一样,不过要设置好id值,以便子页面的参数调用。
<body onload="autoHeight('infrm')"></body> 在body中利用onload事件,将自身的高度传给父页面的iframe。
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